Same entry in other lexica; see the references at Photius kappa573 Theodoridis.
The headword phrase 'empty of light', here in the genitive plural, is commonly used by grammarians to derive gno/fos or kne/fas "darkness"; the latter derivation already occurs in Plutarch, Moralia [De primo frigido] 948E, citing Chrysippus fr.430. The lexicographers' phrase itself is believed to come from Attic tragedy: Adespota fr.219* Snell & Kannicht.